JaCoCo Gradle 插件报告每个包的类覆盖率 0.0

Question

我的目录结构是：

|/src
|   |/main
|   |  |/com.episo
|   |  |  |/contracts
|   |  |  |  |/clip
|   |  |  |  |/security
|   |  |  |/repositories
|   |  |  |  |/memory
|   |/test
|   |  |/com.episo
|   |  |  |/contracts
|   |  |  |  |/clip
|   |  |  |  |/security
|   |  |  |/repositories
|   |  |  |  |/memory

这是我的 build.gradle 的相关部分：

repositories {
    mavenCentral()
    maven { url "http://dl.bintray.com/jetbrains/spek" }
}

dependencies {
    compile "org.jetbrains.kotlin:kotlin-stdlib-jre8:$kotlin_version"
    compile 'com.google.guava:guava:19.0'

    testCompile "org.jetbrains.kotlin:kotlin-stdlib-jre8:$kotlin_version"
    testCompile 'com.google.guava:guava:19.0'
    testCompile group: 'junit', name: 'junit', version: '4.12'
    testCompile "org.jetbrains.kotlin:kotlin-test-junit:$kotlin_version"
    testCompile "org.jetbrains.kotlin:kotlin-reflect:$kotlin_version"
    testCompile 'org.junit.platform:junit-platform-runner:1.0.0-M4'
    testCompile 'org.junit.platform:junit-platform-console:1.0.0-M4'
    testCompile ('org.jetbrains.spek:spek-api:1.1.2') {
        exclude group: 'org.jetbrains.kotlin'
    }
    testRuntime ('org.jetbrains.spek:spek-junit-platform-engine:1.1.2') {
        exclude group: 'org.junit.platform'
        exclude group: 'org.jetbrains.kotlin'
    }
}
// JaCoCo coverage rules
jacocoTestCoverageVerification {
    violationRules {
        rule {
            limit {
                minimum = 0.5
            }
        }

        rule {
            element = 'PACKAGE'
            limit {
                counter = 'CLASS'
                value = 'COVEREDRATIO'
                minimum = 0.7
            }
        }
    }
}

junitPlatform {
    filters {
        engines {
            include 'spek'
        }
    }

    enableStandardTestTask true
}

我的代码是用 Kotlin 编写的，我使用 Spek 编写单元测试。当我通过 IntelliJ GUI 运行测试时，会正确报告代码覆盖率。但是，当我运行

gradle jacocoTestCoverageVerification

时，我得到以下输出：

* What went wrong:
Execution failed for task ':jacocoTestCoverageVerification'.
> Rule violated for bundle episo-contracts: instructions covered ratio is 0.2, but expected minimum is 0.5
  Rule violated for package com.episo.contracts: classes covered ratio is 0.0, but expected minimum is 0.7
  Rule violated for package com.episo.repositories: classes covered ratio is 0.0, but expected minimum is 0.7
  Rule violated for package com.episo.contracts.security: classes covered ratio is 0.0, but expected minimum is 0.7

显然，0.0 的封装覆盖率是不正确的；这意味着我没有编写任何测试，但事实并非如此。

我的目录结构是否有某些问题导致 Jacoco 无法识别哪些测试与哪些类匹配？

Answer 1

对我来说，这个问题是在将旧项目从 Sringboot 2.3.x 迁移到 2.4.x 时出现的，结果是 Junit5。

也有类似的问题，测试通过了 gradle，但 jacoco 抱怨覆盖率是 0.0。

根据发行说明，将其添加到 gradle 构建文件中为我解决了这个问题。